This would make finding fun mods for popular and heavily modded games super easy.

For example lets say You have MOD A which is a frame work for a new feature in the game but in and of itself does little. There is MOD B made by the same mod maker and linked on page BUT there are mods C-Z made by other Mod makers which utilize MOD A but the names could widely vary making them hard to find in a large workshop.

(I got this idea playing Rimworld, and using a Vehicle Framework which has some vehicles but there are TONS of mods that either add to or tweak or re texture them etc..... but you have to know what your looking for in a list of several thousand mods. On top of that it may not be clear by the title or thumbnail that its ties into the Framework. But it does have a dependency set on its mod page for it. I just think it'd be useful to be able to filter for mods in this fashion.

Just got the the Well know (Cause its the main) Framework mod Click on a Dependent's link or some such and any other mod that has the Framework added as a dependency would be shown. Im sure it would be useful for some other games as well.